Adds missing stable dependencies (e.g. `t`, prop callbacks, store refs,
`setFocusedCommentId`) and removes unnecessary ones across hooks where the
fix is straightforward. For the two MobX-observed `.orderedData` deps in
`History.tsx`, keeps the original deps and silences the false positive
with `eslint-disable-next-line` so the memos still recompute when the
underlying observable arrays change.
Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>